Dr. Murai Éva szerk.: Parasitologia Hungarica 23. (Budapest, 1990)

Golgi complex The Golgi apparatus is located between the kinetoplast and flagellar pocket. It is composed of parallel running or more or less concentric tubes (Fig. 13). Endoplasmic reticulum The endoplasmic reticulum is well developed, forming a characteristic cistern below the cell membrane (Figs 5 and 12). Vacuoles, microbodies Larger vacuoles and small vesicles are seen throughout the cytoplasm. The vacuoles differ in shape and electron density. Rounded polysaccharid-containing vacuoles and smaller lipid vacuoles are distributed irregularly in the cytoplasm. It is very difficult to evaluate the function of very large "empty" vacuoles. They may have digestive function. The presence of contractile (pulsatile) vacuole cannot be excluded. Numerous small vesicles, concentrated often in spongiome-like bodies, are present in the cytoplasm. Pinocytosis was observed in the flagellar pocket region membrane (Fig. 13). RNA granules are located on the outer membrane of the nucleus. Smaller electron-dense bodies occur dispersed in the cytoplasm. Other electron-dense bodies are often adjacent to the endoplasmic reticulum. Fig. 11: The flagellar pocket region. Mitochondrion (Mi) with dense plate (Dp) in the vicinity of basal bodies (Bb). Microtubuli adjacent to mitochondrial region with flagellar pocket. Paraxial rod (Par) thins at the distal part of the anterior flagellum. (x 10 000) Insert: cross section of flagella, preoral ridge, cytopharynx. (x 15 000) Fig.12: Concentric membrane structure of mitochondrion (Mi). Origin of preoral ridge (Pr) is evident. Endoplasmic reticulum (Er) under the pellicle, (x 12 000) Fig.13: Specimen in division with four nuclei and four flagella. Note the pinocytotic vacuolum (Pv) at the Golgi complex, (x 20 000) Fig. 14: Cell in division. Nucleus divided, kinetoplast in replication, (x 15 000) Fig. 15: Karyokinesis. Dispersed chromatin. Forming inner membrane, (x 15 000) Fig. 16: Cell in division. Lysosomes(?) in mitochondrion, (x 10 000) Fig. 17: Replicating mitochondrion, (x 15 000) Fig. 18: Divided nucleus and mitochondrion, (x 8 000)